A softball with a mass of 0.11 kg goes moves at a speed of 12 m/s, then the ball is hit by a bat and rebounds in the opposite direction at a speed of 15 m/s. What is the change in momentum of the ball?

A block of mass 0.454 kg is hung from a vertical spring and allowed to reach equilibrium at rest. As a result, the spring is stretched by 0.662 m. Find the spring constant.

What device captures sound waves and transforms them into mechanical energy to make recordings? a. Telephone c. Harpsichord b. Phonograph d. Piano

Convert 5.7 miles to km

An alpha particle (which has two protons) is sent directly toward a target nucleus with 90 protons. the alpha particle has a kinetic energy of 0.45 pj when far away.

If a laptop of mass 1.4 kg is lifted to a table of height 0.8 m, how much gravitational potential energy is added to the laptop?

An instrument used to measure atmospheric pressure is called a

A 200-kg boulder is 1000-m above the ground. what is its potential energy?

The law of reflection states that if the angle of incidence is 81 degrees, the angle of reflection is ___ degrees.

Do you mind if I use this example for my assignment?

A squirrel runs along an overhead telephone wire that stretches from the top of one pole to the next. It is initially at position xi=3.37 mxi=3.37 m, as measured from the center of the wire segment. It then undergoes a displacement of Δx=-6.